华南花岗岩分类与锶同位素和莫霍面的关系：花岗岩系列／类型分布与锶同位素趋势面分布和莫霍面深度变化的制约

华南花岗岩分类与锶同位素和莫霍面的关系：花岗岩系列／类型分布与锶同位素趋势面分布和莫霍面深度变化的制约

王联魁1, 王谦身2, 徐文新1, 陈根文1, 张绍立1

1. 中国科学院,广州地球化学研究所,广州, 510640; 2.中国科学院地质与地理物理研究所,北京, 100029

收稿日期:2005-09-20 修回日期:2005-09-20 出版日期:2005-09-20 发布日期:2005-09-20

Relation Between the Granite Series and Types, Strontium Isotope Compositions and Isobaths of Moho Surface in South China： Distirbution of Granite Series/Types Restricted the Analysis of Strontium Isotopic Tendency Surface and the Depth Variation of Moho Surface

WANG Lian-kui1, WANG Qian-shen2, XU Wen-xin1, CHEN Gen-wen1, ZHANG Shao-li1

1. Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China; 2. Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100029, Bos 9895, China

Received:2005-09-20 Revised:2005-09-20 Online:2005-09-20 Published:2005-09-20

摘要/Abstract

摘要： 根据花岗岩系列和类型编图,华南地区浅源南岭系列（系列I）花岗岩多产于中部和西部,深源长江系列（系列Ⅱ）花岗岩主要分布在东部。诸广山型（I1型）、大容山型（I2型）和关帝庙型（I3型）花岗岩的重点分布区,分别在中心腹地、西部和西北部湖南境内；宁芜型（Ⅱ1型）、德兴型（Ⅱ2型）和闽浙沿海型（Ⅱ3型）花岗岩的重点分布区,分别在长江中下游、中西与中东部深断裂带、东南沿海地区。花岗岩系列、类型的趋势面分析和莫霍面深度变化与上述花岗岩系列、类型分布特点对应得非常好,它们的等值线变化趋势几乎重合,相互间吻合一致,可以认为花岗岩的形成与地幔莫霍面的隆起与坳陷密切相关,地幔隆起区产出深源系列Ⅱ花岗岩,其中Ⅱ1、Ⅱ3型花岗岩尤为典型；地幔坳陷区发育浅源系列I花岗岩,以I2、I3型花岗岩很显著。

Abstract: Based on the mapping of the granitic series and types, strontium isotopic trend surface analyses and isobaths of Moho surface, the deep-level sourced Yangtze series （ series Ⅱ ） granitoids are mainly distributed in the eastern part of South China. The shallow-level sourced Nanling series （ series I ） granitoids are mainly distributed in the central and western parts of South China. The Ningwu type （ type Ⅱ 1 ）, Dexing type （ type Ⅱ 2 ） and Fujing-Zhejiang cosatal type （ type Ⅱ3 ） granitoids are distributed in the middle-western, central-eastern and southeastern coastal parts of South China, respectively. The Zhuguangshan type （ type I 1 ）, Darongshan type （ type I 2 ） and Guangdimiao type （type I 3 ） granitoeds are distributed in the central, western and northwestern parts of South China, respectively. The generation of granitoids is in close relation with the uplift or depression of the mantle （ Moho surface）. The deep-level sourced granitoids （series Ⅱ ） , especially Ⅱ1,Ⅱ 3 types mainly occur in the uplift areas of the mantle, and shallow-level sourced granitiods （ series I ）, especially I 2, I 3 type granitoids, mainly occur in the depression areas of the mantle.

王联魁, 王谦身, 徐文新, 陈根文, 张绍立. 华南花岗岩分类与锶同位素和莫霍面的关系：花岗岩系列／类型分布与锶同位素趋势面分布和莫霍面深度变化的制约[J]. J4.

WANG Lian-kui1, WANG Qian-shen2, XU Wen-xin1, CHEN Gen-wen1, ZHANG Shao-li1. Relation Between the Granite Series and Types, Strontium Isotope Compositions and Isobaths of Moho Surface in South China： Distirbution of Granite Series/Types Restricted the Analysis of Strontium Isotopic Tendency Surface and the Depth Variation of Moho Surface[J]. J4.